Question

67×99+67的简便运算该怎样算？

67×99+67 简便运算

Answer 1

67x99+67
=67x（99+1）
=67x100
=6700

Answer 2

67*99+67
=67*（99+1）
=67*100
=6700

Answer 3

67×（99+1）=6700

Answer 4

67*99+67
=67*（99+1）
=67*100
=6700

Answer 5

67×99+67
=67×(99+1)
=67×100
=6700